This isotope is found at a ratio of about one per 2,500 helium-4 ions, the latter being the common version of helium.

The Webb telescope — a scientific collaboration between NASA, ESA, and the Canadian Space Agency — is designed to peer into the deepest cosmos and reveal new insights about the early universe. It's ...

Rockets can reach the Moon, Mars, and beyond - but the Sun remains an elusive target. It’s not about heat, it’s about orbital ...

Planets are eaten by dying stars as they turn into red giants and expand. Earth will be eaten by the sun in billions of years ...

Life on the International Space Station isn't always easy. There's not a lot of room, no showers, and no laundry. Photos show ...

Uranus Findings Can Aid the Study of Exoplanets Now more than 30 years into its mission, the Hubble Space Telescope has ...

With its origins tracing back to the 1970s, the Hubble Space Telescope was launched aboard the space shuttle Discovery on ...

The NASA/ESA Solar Orbiter recently recorded the highest-ever concentration of a rare helium isotope (3He) emitted from the Sun. A Southwest Research Institute-led team of scientists sought the source ...

Cosmic Splendor,’ on view in NYC, features dazzling pieces from the brand's Sous les Étoiles high jewelry collection.

April’s pink “micromoon” will appear smaller than other full moons this year as it nears its farthest point from Earth in its ...

NASA astronaut Jonny Kim can add going to space to his incomparable résumé. Kim launched on an expedition to the ISS earlier this week to serve as a flight engineer. Before NASA, he was an ...

A day at Uranus just got a little longer. Scientists reported Monday that observations by the Hubble Space Telescope have ...